VariSense

VariSense is a productivity tool for Visual Foxpro. When
triggered(usually through a keyboard shortcut), VariSense will
search through your source code for variables local to your
procedure and do it's best to complete the variable you're
currently typing.

For Example:

At this point, press the keyboard shortcut assigned to
VariSense(I use CTRL+SPACE), and VariSense runs, changing
your code to this:

When VariSense detects two variables with similar
roots(i.e. "tiVariable1" and "tiVariable2"), it will complete
the variable up to the common root(i.e. "tiVariable"), and
then if triggered again, will drop down a menu allowing you to
select a variable.